摘要:
The invention provides a polishing composition comprising fumed alumina, alpha alumina, silica, a nonionic surfactant, a metal chelating organic acid, and a liquid carrier. The invention further provides a method of chemically-mechanically polishing a substrate comprising contacting a substrate with a polishing pad and the chemical-mechanical polishing composition, and abrading at least a portion of the substrate to polish the substrate.
摘要:
The invention provides a polishing composition comprising fumed alumina, alpha alumina, silica, a nonionic surfactant, a metal chelating organic acid, and a liquid carrier. The invention further provides a method of chemically-mechanically polishing a substrate comprising contacting a substrate with a polishing pad and the chemical-mechanical polishing composition, and abrading at least a portion of the substrate to polish the substrate.
摘要:
A highly integrated foldable photovoltaic array comprising at least two PV modules integrated boards and at least one intermediate support structure, at least two fixed hinges on the intermediate support structure; respectively by a hinge connection between the PV modules integrated with the intermediate support plate structure; at least two PV modules integrated plate in contact with the ground; the area of all PV modules on the photovoltaic array is greater than 18 square meters. The present invention may integrate foundations, brackets, cables, photovoltaic modules, inverters, combiner box, optimizer, PV module power detecting device, plug socket, etc. The highly integrated foldable photovoltaic array reduce intermediate process, thus greatly improve the speed of installation, expand its use, reduce installation costs. Its low profile greatly reduce the wind resistance.
摘要:
A photovoltaic array with floating raft foundations comprising at least three photovoltaic integrated boards; the area of the photovoltaic array larger than 10 square meters; at least two photovoltaic integrated boards in contact with the ground. Length of at least three photovoltaic integrated boards is greater than three meters. The photovoltaic array with floating rafts foundations is a whole system, which can significantly reduce the use of the traditional foundation, save construction time, and reduce system cost.
摘要:
A photovoltaic array using photovoltaic module integrated boards comprises at least two cross beams and at least two photovoltaic module integrated boards; the angle between the longitudinal axes of the at least two beams is less than 15 degrees; the angle between the longitudinal axis of at least one beams and the longitudinal axis of the at least two photovoltaic module integrated boards is not less than 30 degrees and not more than 150 degrees; and the total area of all the photovoltaic module integrated boards supported by at least one group of the beams is more than 12 square meters. The present invention is designed to share beams, columns and foundations, thus saving materials and installation time and greatly reducing cost.
摘要:
A method of enhancing a geologic model of a subsurface region is provided. A bed topography of the subsurface region is obtained. The bed topography is defined by a plurality of cells with an elevation associated with each cell center. The bed topography is represented as a cell-centered piecewise constant representation based on the elevations associated with the cells. The bed topography is reconstructed to produce a spatially continuous surface. Flux and gravitational force-related source terms are calculated based on the reconstructed bed topography. Fluxes are calculated between at least two of the cells. Fluid flow, deposition of sediments onto the bed, and/or erosion of sediments from the bed are predicted using the fluxes and gravitational force-related source terms. The predictions are inputted into the geologic model to predict characteristics of the subsurface region, and the predicted characteristics are outputted.
摘要:
A process for the preparation of carbon protected superparamagnetic or magnetic nanospheres is claimed which comprises the steps:(A) coating FexOy particles with an organic polymer, (B) coating the product obtained in step (A) with silica, (C) subjecting the product of step (B) to pyrolysis conditions, and (D) removing silica. According to present process, structurally stable carbon protected magnetic nanospheres were obtained, which can be dispersed in various solvents like water, EtOH, toluene, etc.
摘要:
The invention is a method of modeling a hydrocarbon reservoir. A parameter value in a set of equations is adjusted so that the output of the equations accurately matches observed sediment erosion and deposition behavior for sediment sizes throughout a range of about 10 microns to about 10 centimeters. An initial condition of a sediment bed in the hydrocarbon reservoir is defined. The equations are applied to the initial condition, wherein outputs of the equations express how a fluid flow affects erosion and deposition of sediments at the initial condition. The initial condition is adjusted based on the equation outputs to create a subsequent sediment bed condition. The equations are re-applied to the subsequent sediment bed condition a pre-determined number of times. The subsequent sediment bed condition is re-adjusted after each re-application of the equations. The model of the hydrocarbon reservoir is created and outputted.
摘要:
The invention is a method of modeling a hydrocarbon reservoir. A parameter value in a set of equations is adjusted so that the output of the equations accurately matches observed sediment erosion and deposition behavior for sediment sizes throughout a range of about 10 microns to about 10 centimeters. An initial condition of a sediment bed in the hydrocarbon reservoir is defined. The equations are applied to the initial condition, wherein outputs of the equations express how a fluid flow affects erosion and deposition of sediments at the initial condition. The initial condition is adjusted based on the equation outputs to create a subsequent sediment bed condition. The equations are re-applied to the subsequent sediment bed condition a pre-determined number of times. The subsequent sediment bed condition is re-adjusted after each re-application of the equations. The model of the hydrocarbon reservoir is created and outputted.
摘要:
Techniques pertaining to a comparator circuit with reduced power consumption are disclosed. According to one aspect of the present invention, the comparator unit has a pair of input signal pins VIP and VIN, a pair of output signal pins VOR and VOS, and a clock signal pin CLK. In operation, when the CLK signal is at an idle voltage level, the comparator unit comes into an idle state. At the idle state, the comparator unit does not compare the two input signals VIP and VIN so that the output signals are identical. When the CLK signal is at a busy voltage level, the comparator comes into a busy state. At the busy state, the comparator compares the input signals VIP and VIN, and determines the values of the output signals VOR and VOS depending on the comparing result, e.g., if the input signal VIP is larger than the input signal VIN, the output signal VOR is high and the output signal VOS is low; otherwise, the output signal VOR is low and the output signal VOS is high.